TDP0604: schematic check

GARETH OU

Guru 11875 points

Part Number: TDP0604

Could you help check the below schematic and any need to adjust ,Thanks

0 Zach Dryer over 2 years ago

Hello, Gareth,

I am working this now and will get back to you shortly.

Thanks,

Zach

0 Zach Dryer over 2 years ago in reply to Zach Dryer

Gareth,

The 1.8k pullups need to be on the HV_DDC_SCL/SDA, no need to have 1.8k pullups on LV_DDC_SCL/SDA.

For the DC-coupled output, AC_EN needs to be pulled low.

For pin-strap mode, HPDOUT_SEL needs to be pulled low to ground.

Is your source going to be DP++ AC coupled or DVI DC coupled?

Thanks,
Zach

0 GARETH OU over 2 years ago in reply to Zach Dryer

Guru 11875 points

Hi Zach

Is your source going to be DP++ AC coupled or DVI DC coupled?

>>> I have HDMI/DVI input, no DP input.

There is a pull-down resistor in the IC, if it is not used, can it be kept Floating or Pull-High externally instead of externally grounded?!

0 Zach Dryer over 2 years ago in reply to GARETH OU

Gareth,

If the source output is DVI/HDMI, then you want to replace the TDP0604 input capacitors with 0-ohm resistor since DVI/HDMI is a DC-coupled interface.

Thanks,

Zach

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